package section_06.reflect;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.regex.Pattern;

public class ShowMethods {

	private static String usage = "usage:\n" + "ShowMehtods qualified.class.name\n"
			+ "To show all methods in class or:\n" + "ShowMethods qualified.class.name word\n"
			+ "To search for methods involving 'word'";
	private static Pattern p = Pattern.compile("\\w+\\.");
	private static String[] arrs = { "section_06.reflect.ShowMethods" };

	public static void main(String[] args) {
		if (arrs.length < 1) {
			System.out.println(usage);
			System.exit(0);
		}
		int lines = 0;
		try {
			Class<?> c = Class.forName(arrs[0]);
			Method[] methods = c.getMethods();
			Constructor[] ctros = c.getConstructors();
			if (arrs.length == 1) {
				for (Method method : methods) {
					System.out.println(p.matcher(method.toString()).replaceAll(""));
				}
				for (Constructor ctro : ctros) {
					System.out.println(p.matcher(ctro.toString()).replaceAll(""));
				}
				lines = methods.length + ctros.length;
			} else {
				for (Method method : methods) {
					if (method.toString().indexOf(arrs[1]) != -1) {
						System.out.println(p.matcher(method.toString()).replaceAll(""));
						lines++;
					}
				}
				for (Constructor ctor : ctros) {
					if (ctor.toString().indexOf(arrs[1]) != -1) {
						System.out.println(p.matcher(ctor.toString()).replaceAll(""));
						lines++;
					}
				}
			}
		} catch (ClassNotFoundException e) {
			System.out.println("No such class: " + e);
		}
	}

}
